1. Our this item is used to blow dust and must be only worked with an air compressor. 2. It is designed with two colors, also ergonomically designed with grip which provides easy operation. 3. It is provided with special wide range nozzle which can increase the range of blowing dust. 4. It is made of fiber reinforced plastics. 5. Max. operating pressure: 170 psi (12kg/cm2) 6. Air inlet: 1/4"